Simulation is a technique used to imitate real-world processes over time on a computer. It is a widely used tool for decision making, especially for complex systems that cannot be solved mathematically. This document discusses simulation in textile products, including garment design and various simulation techniques like discrete event simulation, cloth simulation, yarn-level woven cloth simulation, knitting simulation, and sewing simulation. It also mentions using software like 3Ds Max, Marvelous Designer, and NedGraphics for home textile design and simulation.

1. SIMULATION In Textile Products

2. WHAT IS SIMULATION?
 The imitation of the operation of a real-world
process or system over time…
 Most widely used tool (along LP) for decision making
 Usually on a computer with appropriate software
 An analysis (descriptive) tool – can answer what if
questions
 A synthesis (prescriptive) tool – if complemented by
other tools
 Applied to complex systems that are impossible to
solve mathematically
 This course focuses on one form of simulation
modelling – discrete-event simulation modelling.

3. What is Simulation
A Simulation of a system is the
operation of a model, which is a
representation of that system.
The model is amenable to manipulation
which would be impossible, too
expensive, or too impractical to
perform on the system which it
portrays.
The operation of the model can be
studied, and , from this, properties
concerning the behavior of the actual
system can be inferred

4. SYSTEM
 A set of interacting components or entities
operating together to achieve a common
goal or objective.
 Examples:
 A manufacturing system with its machine
centers, inventories, conveyor belts, production
schedule, items produced.
 A telecommunication system with its messages,
communication network servers.
 A theme park with rides, workers, …
REAL WORLD SYSTEMS OF INTEREST ARE HIGHLY COMPLEX!!!

5. ADVANTAGES OF SIMULATION
• When mathematical analysis methods are not
available, simulation may be the only investigation
tool
• When mathematical analysis methods are available,
but are so complex that simulation may provide a
simpler solution
• Allows comparisons of alternative designs or
alternative operating policies
• Allows time compression or expansion

6. Designing
 Marvelous Designer Workflow
to get the idea how clothing look like when creating
clothes in Marvelous Designer, the more
accurate to real world patterns and designs you
achieve, more successful your modeling will be.
Therefore I did quite a bit of research on game called
battle field 4, Iraq military uniform and how
each piece of clothing is constructed.

10. A Virtual Garment Design and
Simulation System
 Garment design consists of defining the cloth model and
the garment construction process, in turn of the
construction of garment patterns and the definition of
the seaming
points between each panel.
To simulate the garment, the system must be
integrated
numerically. The positions of the particles making up
the
cloth are calculated over time considering the forces
acting
on the cloth.

11. Cloth Simulation with Opengl
 Sheet Class

12. Skirt Class

14. Cloth Shaders

17. Simulation with Keyframe
editor

19. Yarn-Level Simulation of Woven
Cloth
 The large-scale mechanical behavior of woven cloth is
determined by the mechanical properties of the yarns,
the weave pattern, and frictional contact between yarns.
 Using standard simulation methods for elastic rod
models and yarn-yarn contact handling, the simulation
of woven garments at realistic yarn densities is deemed
intractable. This paper introduces an efficient solution
for simulating
woven cloth at the yarn level.

20.  Woven cloth is formed by interlacing yarns,
typically two sets of orthogonal yarns called warp
and weft. Interlaced yarns undergo friction forces
at yarn-yarn contacts, and this friction holds
together the woven fabric.
 Large-scale mechanics of woven cloth are dictated
by the fine-scale
behavior of yarns, their mechanical properties,
arrangement, and
contact interactions.

22. Simulation in Knitting
with Knitwear

26. Sewing with the Garment
Design System

27. sewing Simulation with Try
On
 The process chain for virtual try-
on and final visualization consists
of several steps. First, the
automatic prepositioning,
providing a good initial
simulation state for the cloth-
patterns with according seam
information. Second, the
physical
simulation calculating the drape
of the garment, where measured
material data are integrated.

28.  there is the sewing information
that describes how the cloth
patterns must be sewn together.
Of course this information is also
required, if we want to dress a
virtual human with virtual
garments. In a virtual try-on
context, one approach is to build
the virtual cloth patterns
with the geometry information
from the CAD systems, to sew
them together virtually with the
appropriate sewing information
and to simulate
the real try-on process

31. Working with 3Ds Max.
 To Create a good quality scene or image
using 3Ds max there’s some requirement
that must exist in the scene in order to
produce a good product.
 The object.
 Materials.
 Lights.
 Cameras.
 Animations.

32. Objects.
 The objects that can be represented in the
scene can be predefined primitives and models
or user designed models.

34. Home Designing with
NedGraphics
 One of the biggest markets in the world
is the one of home textiles. Textiles are
used in many different areas of your
daily life. Towels, curtains, furnishing
fabrics and even the fabric covering the
seats of your car, are designed and
produced with the help of NedGraphics
software. Nedgraphics is more
knowledgeable than any other supplier
and offers it’s customers the best
solutions for success.

49. Thank
You?